Designed as an alternative to the traditional coach screw mainly used for timber to timber applications. Coated with a patented multi-layer corrosion resistant plating, this screw is ideal for external applications. Stainless steel must be used where there is corrosive environment and/or where the base material has inherent corrosive characteristics e.g. Green Oak. Wafer head countersunk and TX30 recess.Long lasting withstands up to 1,000 hours salt spray resistance in accordance to BS EN 9227:2012.Helix shank for removing debris and to improve clamping.50° deep single thread to provide a secure fixing with high pull-out resistance .Single slash point to reduce torque and the risk of timber splitting at low edge distance.25° sharp point and single lead for a fast start and improved thread acceptance.